WO2007093164A1 - Procédé d'étirage et système d'étirage pour l'affinage de matière fibreuse - Google Patents

Procédé d'étirage et système d'étirage pour l'affinage de matière fibreuse Download PDF

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Publication number
WO2007093164A1
WO2007093164A1 PCT/DE2007/000285 DE2007000285W WO2007093164A1 WO 2007093164 A1 WO2007093164 A1 WO 2007093164A1 DE 2007000285 W DE2007000285 W DE 2007000285W WO 2007093164 A1 WO2007093164 A1 WO 2007093164A1
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WIPO (PCT)
Prior art keywords
drafting
fiber material
folding
transport direction
iii
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Application number
PCT/DE2007/000285
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German (de)
English (en)
Inventor
Reinhard KÖNIG
Original Assignee
Koenig Reinhard
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Koenig Reinhard filed Critical Koenig Reinhard
Publication of WO2007093164A1 publication Critical patent/WO2007093164A1/fr

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Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H5/00—Drafting machines or arrangements ; Threading of roving into drafting machine
    • D01H5/18—Drafting machines or arrangements without fallers or like pinned bars
    • D01H5/70—Constructional features of drafting elements
    • D01H5/72—Fibre-condensing guides

Definitions

  • the invention relates to a stretching method according to the preamble of claim 1 and a drafting system according to the preamble of claim 7.
  • Drawframes and stretching methods which can be carried out using them are used in the spinning industry to refine fiber materials in the form of tapes, slivers or rovings, which are produced in upstream processes from long staple or short staple fibers.
  • the drafting systems generally have three or four, in a transport direction for the fiber material successively arranged pairs of drafting device organs. Each of these pairs consists of an upper and a lower drafting device in the form of a roller or a roll provided with an additional belt, the belt serving to better guide the fiber material.
  • the refinement of the material flow with a drafting system is carried out by stretching or distortion of the fiber material between the nip lines of two successive pairs of drafting device organs.
  • the size of this distortion and the resulting reduction in the number of fibers in the cross section of the fiber material are adjusted via the peripheral speeds of the drafting system organs.
  • Each stretching operation when carried out to avoid costs without additional control, involves certain variations in mass that cause a reduction in the uniformity of the fiber material. These fluctuations are u. a. attributed to the fact that the unavoidable distances between successive pairs of drafting device organs, in particular in the case of large distortions, lead to an undesirable oscillation or floating of the fibers in the fiber stream, and can be so strong that a meaningful further processing of the fiber material is impossible. Even if the fiber material is stabilized between the nip lines by the guiding straps, the distance from its exit nip to the subsequent nip line can not be set narrower than about 10 mm, which is generally considered insufficient.
  • the coming out of the drafting sliver is then fed to a so-called flyer containing at least one other drafting, and with slight rotation to a sliver or a roving with a width of z. B. 4 mm to 5 mm spun.
  • a belt made of a batt is refined by means of at least one first drafting device and reduced in width by a comparatively small amount, e.g. by means of an upstream of the drafting inlet funnel.
  • the tape thus obtained is then spun in a subsequent second stage by means of a flyer to a roving.
  • compacting devices which serve to bring about a reduction in the width of the fiber material measured transversely to the transport direction of the fiber stream.
  • Such devices contain z. B. funnel-shaped compressor, through which the fiber material is passed.
  • sieve-like belts or drums which have perforations or slots connected to a source of negative pressure and serve to compact the fiber stream transversely to the transport direction to form a strand of smaller width.
  • the technical problem underlying the invention is to improve the drafting processes and drafting systems described at the outset in such a way that the uncontrolled oscillation and floating of the fibers is reduced in the highly stretched state and without use of a flyer or the like, a sliver is obtained as the end product , which is greatly reduced in width compared to the supplied sliver and is suitable for direct processing, for example, in a subsequent spinning process.
  • the advantage is achieved that a combination of refinement by warpage and width reduction by defined folding within a single drafting a stable, ribbon-like fiber material is obtained, which has about the same width and strength as a conventional roving.
  • From an original sliver with a width of z. B. 20 mm can be produced in this way by a defined folding a compacted belt with a width of down to less than 5 mm and, if necessary, by a second defined folding a still further compressed belt with a width of 2.5 mm and less become.
  • Such a sliver is outstandingly suitable for spinning by ring spinning, air vortex spinning or the like, and possibly also for compact spinning.
  • the stretching methods and drafting systems according to the invention are therefore suitable both for ring spinning or air-jet spinning with omission of a flyer and in particular for so-called spun-knitting (cf., for example, PCT WO 2004/079068).
  • Figure 1 shows schematically in a partially sectioned side view of a drafting system with a folding zone according to the invention.
  • Figure 2 schematically and in a partially sectioned plan view of the drafting system of Fig. 1.
  • 3 shows in a perspective view two pairs of drafting system elements of the drafting system according to FIGS. 1 and 2 forming the folding zone;
  • FIG. 4 shows schematically different folding patterns which can be achieved with the folding zone according to FIG. 2 in cross section;
  • FIG. 5 in a view corresponding to FIG. 2, a second exemplary embodiment of a drafting system with a folding zone according to the invention
  • FIGS. 1 and 5 shows a further exemplary embodiment for a drive of the drafting systems according to FIGS. 1 and 5;
  • FIG. 7 shows, in a view corresponding to FIG. 1, a further exemplary embodiment of a drafting system with two folding zones according to the invention.
  • Fig. 1 and 2 show a drafting system through which a fiber material 2 is passed in a direction indicated by arrows 1 Transporttrichtimg.
  • the drafting system has four pairs I, II, III and IV of drafting device bodies lying one behind the other in the transport direction.
  • the first pair I in the transporting direction 1 and the second pair II following it in the direction of conveyance comprise two rollers 3a, 3b or 4a and 4b, of which only one upper roller 3b, 4b is visible in FIG.
  • the following third pair III contains as drafting elements 5a and 5b respectively a draw roller 6a and 6b, this associated deflection elements 7a, 7b and S, which may consist of pulleys or rods, and the deflection 7a, 7b and 8 and the associated Rolls 6a, 6b guided straps 9a and 9b, in the manner known in Riemchenstrecktechniken include a lower and an upper apron 9a and 9b, between which the fiber material 2 is guided after leaving the draw rolls 6a, 6b.
  • the fourth, in the transport direction 1 last pair IV again contains two drafting device 10a, 10b in the form of a respective lower and upper roller.
  • the pairs I and II of the drafting system members 3, 4 a delay zone 16, wherein the peripheral speeds of the drafting system organs 3, 4 z. B. are selected so that a distortion of the fiber material between 5 and 15 times is obtained, which comes close to the delay in a conventional flyer.
  • the fiber material 2 is subjected to a main distortion between the clamping lines 13 and 14 or in a zone 17, which leads to an extension of the fiber material 2 z. B. leads to 50 times or more and to a preselected final fineness.
  • the drafting device described has at least two pairs of drafting device organs, which bring about a folding of the fiber material 2. These are in Fig. 1 to 3, the pairs II and III, the clamping lines 12 and 13 form a folding zone 18 between them. In contrast to the delay zones 16 and 17, only a tensioning distortion takes place between the clamping lines 12 and 13, which is just sufficient to keep the fiber material 2 taut and to effect a defined folding, and preferably e.g. 10%.
  • the center axes of the rollers 6 of the pair III are tilted or pivoted by 90 ° with respect to the center axes of the pair II.
  • the center axes of the drafting system elements 3 are parallel to those of the drafting device 4 and the center axes of the drafting system members 10 parallel to those of the rollers 6a, 6b arranged.
  • the dimension Bl - B2 by which the fiber material 2 in the folding zone 18 is narrowed transversely to the transport direction 1, essentially depends on the type of folding selected. As is indicated schematically in Fig. 4, the fiber mate rial 2 when leaving the drafting device organs 5a, 5b of the pair III z. B. have a folding figure in the manner of a V-, N-, W- or even more advanced folding, the z. B. could be referred to as "W-shaped with small extensions". It is clear what is not immediately apparent in the schematic representation selected in FIG. 4 that the width B2 of a fiber material 2a folded in a V shape corresponds to approximately half of the original width B1.
  • a width B3 is approximately equal to one third of Bl, since here two parallel fold lines 19a, 19b are present.
  • a width B4 is about equal to a quarter of Bl.
  • a width B5 of a fibrous material 2d is finally less than a quarter of the width Bl There are five fold lines here.
  • the type of folding can be adjusted by selecting a distance D (FIG. 2) between the clamping lines 12 and 13 of the stretching members 4, 5 pivoted preferably by 90 ° or the length D of the folding zone 18.
  • a distance D (FIG. 2) between the clamping lines 12 and 13 of the stretching members 4, 5 pivoted preferably by 90 ° or the length D of the folding zone 18.
  • the distance D becomes smaller, the fold changes from V-shaped via N-shaped and W-shaped up to W-shaped with extensions, ie the folding form according to FIG. 4 is a function of the distance D.
  • the distance D is adjusted so that a W-shaped fold results and the original width Bl of the fiber material of z. B. 20 mm to a final width B4 of about 5 mm is reduced. This width corresponds approximately to the diameter of a standard roving, with the result that on the width B4
  • a compaction zone formed with conventional mechanisms can directly adjoin the fourth pair IV of the drafting system members 10a, 10b, as indicated schematically in FIG. 2, in order to further compact the fiber material 2 before it is subjected to the spinning process.
  • the embodiment according to FIGS. 1 to 4 is particularly suitable for the processing of a strip material supplied to the input rollers 3a, 3b.
  • the folding zone 18 is disposed between the pre-drafting zone 16 and the main drafting zone 17 and is formed as a zone in which there is a short draft (e.g., at most 20%) only for the tension of the fibrous material 2.
  • the fiber material 2 is preferably drawn in the pre-drawn zone 16 so far that it enters the folding zone 16 with a thickness which corresponds to a flyer nap (eg 6-fold draft), is folded therein and in the folded state of the main draft zone 17 is supplied.
  • a flyer nap eg 6-fold draft
  • a substantially straightforward transport path for the fiber material 2 preferably results between the clamping lines 11 and 14, ie the fiber flow also exits the nip line 12 without significant deflection and enters the nip line 13, although this is not mandatory is required.
  • the folding which is largely automatic, also depends on the width Bl of the sliver 2 leaving the rolls 4a, 4b.
  • the fibers are in the folding zone 18 at a preselected low voltage, e.g. a tensioning delay of 10%.
  • a tensioning delay of 10% e.g. 10%.
  • Fig. 3 and 4 show, that the fibers lying at the outer edges of the fiber material 2 when entering the nip line 13 of the drafting system members 6a, 6b due to the larger path more than those lying in a middle, neutral zone Fibers are stretched and therefore forms a characteristic inlet triangle (see Fig. 2 and 3).
  • the outer fibers have the tendency to migrate inwardly into a state of reduced tension and thereby cause the described folding of the fiber material 2.
  • the type of folding depends not only on the length D of the folding zone 18, but also on the width Bl of the fiber material.
  • the dimension D should be smaller than the fiber length used, so that in the folding zone 18 both the fibers located at the edge and in the center of the fiber stream 2 are kept under tension. So far, fiber materials or bands have proved to be useful for the desired folding, the widths Bl at the output of the nip 12 is between 10 mm and 25 mm. In this connection, it has also been found that the larger the width Bl, the larger the number of folds.
  • the density of the fiber material can also influence the folding. In individual cases, it may therefore be necessary to determine by experiment which dimensions are particularly favorable for D and Bl.
  • the upper drafting member 10b (FIG. 2) designed as a roller is located at the exit of the drafting system Pair IV replaced by a belt cage 20.
  • the axes of the deflection elements 22 to 24 are preferably arranged parallel to the central axes of the rollers 6a, 6b.
  • the deflection element 22 can be driven in such a way that the belt 21 is forcibly transported in the same direction as the belt 9b.
  • the belt cage 20 formed by the components 21 to 24 may also, like the upper drafting device elements of the pairs I to III (FIG. 2), be fastened and supported on a customary pressure arm 25 shown schematically in FIG. 1, the function of which will be explained below.
  • An advantage of the belt cage 20 is that the deflecting element 24 leading in the transport direction 1 forms a nip with the stretching member 10a and, in particular, in the case that in addition to the pure stretching rollers 6a, 6b, the pair of straps 9a, 9b shown in FIG , can be arranged very close behind the deflecting elements 7b, 8 located at the exit of the apron guide, as is clearly visible in FIG.
  • the fiber material 2 is therefore guided extremely safe in this embodiment, wherein it is readily guided on a distance F of less than 10 mm, preferably considerably less than 10 mm and thereby neither tends to swing nor to swim.
  • the fiber material 2 is freely running here only in the very narrow region F (FIG. 5), which is substantially smaller than the corresponding regions of known drafting systems. As a result, a particularly high uniformity of the fiber material 2 emerging from the starting pair IV is obtained.
  • Folding drafting systems which are designed according to FIGS. 1 to 5 as 4-roller drafting arrangements and in a pre-drawn zone have a delay of 5 to 15 times, in a subsequent folding zone a delay of approximately 1, 2-fold and cause a delay of 50 times and more in the subsequent main draft zone.
  • Fig. 1 also shows a possible drive for the various pairs I to IV of drafting device 3, 4, 5 and 10. Thereafter, the formed of rollers, lower drafting device members 3a and 4a are driven by means of toothed belts 26 and 27, which tangentially with Drive gears 28, 29 are engaged, which are mounted on shafts, which also carry the rollers 3a, 4a.
  • the toothed belts 26, 27 thereby run via drive gears, not shown, which are mounted on the shafts of drive motors, likewise not shown, or the like.
  • the upper drafting elements 3b, 4b which are also designed as rollers, are preferably friction-driven only by friction Drafting organs 3a, 4a entrained by being rotatably mounted as usual on the pressure arm 25 which is fixed to a rocker 30.
  • This rocker 30 is od with a stationary bearing shaft 31 on a frame 32.
  • the bearing axis 31 is parallel to the center axes of the drafting system organs 3, 4 and arranged so that the rocker 30 and with it the upper drafting system members 3b, 4b by means of a force, for.
  • FIG. 1 A second exemplary embodiment for a drive of at least the drafting device elements 3, 4, 5 and 10 is shown in FIG. Also in this case, the same parts with the same reference numerals as in Fig. 1 to 5 are provided.
  • the drive each includes a drive shaft 35, on which a helical-toothed spur gear 36 is fixed, which is engaged with a helical gear 37 also having a helical toothing, which is fixed on the shaft carrying the respective drafting roller 3a, 4a, etc.
  • the drive shaft 35 arranged perpendicular to the transport direction 1 is driven by a drive motor, not shown. Instead of the illustrated helical gear can also other gear such. B. bevel or worm gear can be applied. Otherwise, the arrangement is analogous to FIGS. 1 and 2.
  • the drives for the drafting device organs 5a and 10a can be designed accordingly.
  • the straps 9a and 9b have in a particularly preferred development of the invention at least one track, preferably at one edge, a perforation 38 parallel to the transport direction (FIG. 1) engage in the small radial transport fingers or pins 39 which are formed on the circumference of the same time serving as a drive roller for the belt 9b, in Fig. 1 not visible draw roller 6b.
  • the arrangement for the strap 9a can be made. This ensures that the straps 9a, 9b rotate with little or no slippage or are constrained, which further increases the uniformity of the fiber sliver produced. An even more extensive avoidance of slippage is achieved, although the upper apron 9b is forced is driven. This can be achieved, for example, by two gears which are arranged and fixed on the shaft ends of the rollers 6a, 6b in such a way that they automatically engage each other when the pressure arm 25 is lowered in the direction of the arrow 33.
  • FIG. 7 shows an exemplary embodiment in which the pair of outlets IV described with reference to FIG. 5 follows a further pair V of drafting device elements which forms a compaction zone 40 with the pair IV preceding in the transport direction, which is also indicated in FIG usual mechanism can exist.
  • this compaction zone 40 it is particularly advantageous to form this compaction zone 40 as a second folding zone.
  • the pair V is provided with drafting device organs, which are preferably formed analogously to those of the pair IV. Therefore, at least the upper drafting device is analogous to FIG.
  • the leading deflection element 43 forms with the underlying drafting device of the pair V a nip line 46, which can be brought very close (distance d in Fig. 7) to an output terminal line 47, by the trailing deflector 23 and the lower roller 10a of the pair IV is formed.
  • FIG. 1 FIG. 1
  • FIG. 7 shows that the center or rotational and guide axes of the deflecting elements 42 to 44 designed as rollers or rods are pivoted by 90 ° relative to the center axes of the corresponding deflecting elements 22 to 24 of the preceding pair IV, so that the clamping lines 46, 47 form the second folding zone 40.
  • the fiber material 2 appearing at the exit of the pair IV of drafting device organs is thereby folded again and compacted in the same way as was explained above with reference to FIGS. 1 to 4.
  • a V-shaped fold is produced here with particular advantage, so that the sliver, previously reduced to approximately one fourth of its width, once again has half its width and thus a final width of 2 mm in the example given above compacted to 2.5 mm.
  • FIGS. 1 to 6 A difference to FIGS. 1 to 6 is the mere fact that the second fold after the main draw, d. H. after reaching the final fineness, while in Fig. 1 to 6, the folding is made before the main delay.
  • Fig. 7 shows that the belt cages 20 and 41 each define a leading and trailing nip, as indicated on the one hand by the nip line 47, on the other hand by a nip line 48 formed between the leading deflector 24 and the drafting member 10a. Between these two clamping lines 48
  • Fig. 7 shows a third variant for the drive of the drafting system organs.
  • z. B the lower drafting device organs mounted on shafts at the ends of gears 20 50 are secured with helical teeth, which are in engagement with other, also a helical gear teeth 51 which are mounted on the drive shafts of drive motors, not shown.
  • the lower drafting devices of the pairs III to V can be driven.
  • Fig. 8 shows schematically an embodiment of a folding drafting system according to the invention with two drafting sections arranged in parallel, to which fiber materials are fed in the direction of arrows Ia and Ib analogously to Figs. Since both drafting sections are identical, only one of them will be explained in more detail below, wherein like parts with the same reference numerals as in FIGS. 1 to 7 are provided
  • the fiber material supplied in the direction of the arrow 1a, but not initially shown is a Pair I of input drafting devices in the form of two rollers 56 passes through, of which in Fig. 8 only one is visible and between them form a nip line 57 which is parallel instead of perpendicular to the nip lines of the pairs III and IV (see, for B. Fig. 1). Therefore, the nip lines 57 and 12 of the first and second pairs I and II are arranged at an angle relative to one another, which is preferably 90 °, but may also have other values.
  • the conditions are selected such that the folding of the fiber material takes place between the clamping lines 12 and 13.
  • the conditions with respect to the rollers 56 and 4a, 4b are chosen so that there is no folding between them by z. B.
  • the distance between the nip lines 57 and 12 is chosen sufficiently large.
  • between the rollers 56 and 4a, 4b guide elements 57a in the form of obliquely arranged rails, helically curved guide plates od.
  • the fiber material therefore enters the nip line 12 as shown in FIGS. 1 and 2 with the preselected width. For the desired folding process, the "history" of the fiber material is thus of no importance.
  • An advantage of the embodiment of Fig. 8 is that the drafting organs of the pairs I, III and IV can be arranged parallel to each other, which is favorable for the design of the drive mechanism for the drafting system.
  • FIG. 9 A further exemplary embodiment of a folding drafting arrangement according to the invention is shown in FIG. 9.
  • two drafting sections operating in parallel are combined in a drafting system.
  • the starting point for the drafting system according to FIG. 9 is a classic 4-roller drafting system designed without a folding zone.
  • the pairs I, III and FV of drafting device organs are analogous to FIG. 8. The same parts are therefore again provided with the same reference numerals.
  • a clamping line 59 forming drafting device of the second pair II with axes which are parallel to those of Drafting elements 56, 6b and 10b are arranged, as is always the case with a classic 4-roller drafting system. A folding of the supplied fiber material would therefore not take place.
  • the four-roller drafting system is converted into a folding drafting system in that, between pairs II and III, a further pair VI of drafting apparatuses in the form of rollers 60a, 60b is installed, which form a nip line 61 between them.
  • the rollers 60a, 60b and their clamping line 61 and axes of rotation are arranged so that they are an angle between 0 ° and 90 °, preferably from 45 ° to 90 ° between them and the clamping lines 57, 59, 13, 14 of the pairs I to Form IV.
  • the conditions z. B.
  • a folding zone is formed, which corresponds to the folding zone 18 in Fig. 2.
  • the sliver can therefore first analogous to Fig. 2, a pre-draft zone between the nip lines 57 and 59 go through and then folded in the manner described.
  • the relationships between the clamping lines 61 and 13, which likewise form an angle of " eg 90 ° with one another in the exemplary embodiment according to FIG. 9, are preferably chosen so that folding of the already folded fiber material does not occur again. This can be achieved, for example, by selecting the spacing of the clamping lines 61 and 13 to be sufficiently greater than the width of the fiber material, which is now only 4 mm, even if the fiber material in the nip line 13 should be slightly squeezed Essentially, the fiber material is only deflected between the nip lines 61 and 13, as is the case for the area between the nip lines 57 and 12 in Figure 8, and thus into the nip Correct position for the following straps 9a, 9b brought in. If necessary, the desired deflection without folding according to Fig. 8 by between the Klemmli 61, 13 arranged Leiteiemente be ensured.
  • the drafting system of FIG. 9 has the advantage that it can be obtained by converting an existing 4-roller drafting system, which also for the drafting system of FIG. 8 existing advantage of a simple design possibility for the drive mechanism, since the four pairs I to IV drafting with parallel axes of rotation and only the drafting elements of the pair VI differ from it.
  • the drafting sections which are associated with the arrows Ib in Figs. 8 and 9, are designed exactly as described above. Therefore, z.
  • the drafting members of the pairs I to IV connected to the drive are all formed on continuous shafts (eg 62 in Fig. 9). This is advantageous in particular with regard to their use on spinning knitting machines, because in this way drafting devices produced in a simple manner in tandem construction can be made available, by means of which two knitting or knitting points can each be operated.
  • the stretching process according to the invention can be carried out in various ways.
  • the fiber material 2 Fig. 1 to 6 whose input width z. B. by the inlet funnel 15 of 20 mm to 15 mm and then reduced in drafting to about 4 mm.
  • the folding effected in the folding zone 18 also remains in the further course of the method, in particular if close distances are maintained to subsequent pairs of drafting device bodies or if folding back is prevented by means of the straps 9a, 9b. Therefore, the main distortion of the folded fiber material 2 in the drafting zone 17 is easy.
  • the additional use of a flyer can be completely avoided. If an even more extensive reduction in the width of the sliver 2 is desired, this is subjected to a second fold as shown in FIG.
  • the pair V is arranged by drafting device organs immediately behind the drafting system according to FIGS. 1 to 6 or integrated with particular advantage as a pair output in this drafting.
  • the invention is not limited to the described embodiments, which can be modified in many ways. This applies in particular to the design and relative arrangement of the two pairs of rollers used to form the folding zones 18 (FIG. 1) and 40 (FIG. 7). Above all, it is not necessary to tilt or pivot the central axes of the participating pairs of drafting device organs by exactly 90 ° relative to each other. Even with much smaller swivel angles down to, for example, 45 ° can be good results in terms of Paltung and the folding pattern of FIG. 4 achieve. In any case, however, the arrangement is made such that the two clamping lines 12 and 13 assume a skewed position relative to one another. Further, other than the shown and described drafting system organs and drives can be provided for it.
  • the specified distortions and the specified input and output widths of the fiber material 2 represent only examples and other distortions and width reductions can be adjusted as needed.
  • the drafting devices described are particularly suitable for the production of threads suitable for so-called spun knitting (eg PCT WO 2004/079068).
  • spun knitting eg PCT WO 2004/079068.
  • the drafting of Fig. 1 to 6 replace those drafting, which are in the spinning knitting immediately before the place where the fiber material enters a knitting point or in front of the knitting befindliches, in particular for the production of a temporary yarn specific spinning member.
  • all drafting device elements can be constructed in tandem construction and have two (or more) effective sections for the simultaneous machining of two (or more) parallel fiber materials 2 transversely to the transport direction 1.
  • the various features can also be applied in combinations other than those described and illustrated.

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  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

Procédé et dispositif d'affinage de matière fibreuse (2) avant un processus de filage ou un processus de filage-tricotage. La matière fibreuse (2) est introduite avec une largeur prédéterminée dans un système d'étirage et est affinée dans ce dernier par étirage se produisant dans la direction de transport (1) à l'aide d'organes (4, 5) du système d'étirage. Selon la présente invention, la largeur de la matière fibreuse (2) est réduite à l'intérieur du système d'étirage parce que ladite matière est pliée de manière définie autour d'au moins une ligne de pliage parallèle à la direction de transport (1) du fait que les axes des organes (4, 5) de paires successives (II, III) du système d'étirage sont inclinés d'au moins 45°, et de préférence d'essentiellement 90° les uns par rapport aux autres.
PCT/DE2007/000285 2006-02-13 2007-02-13 Procédé d'étirage et système d'étirage pour l'affinage de matière fibreuse WO2007093164A1 (fr)

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DE102006006504.2A DE102006006504B4 (de) 2006-02-13 2006-02-13 Streckverfahren und Streckwerk zur Verfeinerung von Fasermaterial

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Cited By (1)

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US7882710B2 (en) 2007-06-14 2011-02-08 Reinhard Koenig Circular knitting machine for the production of knitted fabrics by at least partially using fibre materials

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DE102006006502B4 (de) 2006-02-13 2018-03-08 Reinhard König Spinnstrickmaschine
DE102007052549A1 (de) * 2007-10-30 2009-05-20 Sipra Patententwicklungs- Und Beteiligungsgesellschaft Mbh Maschine zur Herstellung von Maschenware unter zumindest teilweiser Anwendung von Fasermaterial

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GB509493A (en) * 1937-10-09 1939-07-10 Mackie & Sons Ltd J Improvements in and relating to spinning machines
CH221277A (de) * 1940-10-05 1942-05-31 Saechsische Textilmaschinenfab Verbundstreckwerk für Vorspinnmaschinen.
DE2749849A1 (de) * 1976-11-10 1978-05-11 Joseph Marie Julien Sauvage Vorrichtung zum mischen, entfilzen, kuerzen oder kalibrieren von faserbaendern aus natur- oder kunstfasern
JPS55137224A (en) * 1979-04-12 1980-10-25 Aichi Boseki Kk Folding mixing and collector for sliver
WO2004079068A2 (fr) * 2003-03-06 2004-09-16 Koenig Reinhard Tissu maille, procede et dispositif pour le realiser

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Publication number Priority date Publication date Assignee Title
GB332079A (en) * 1929-08-06 1930-07-17 William George Reynolds Improvements in drawing mechanism for preparing fibrous material for spinning
GB509493A (en) * 1937-10-09 1939-07-10 Mackie & Sons Ltd J Improvements in and relating to spinning machines
CH221277A (de) * 1940-10-05 1942-05-31 Saechsische Textilmaschinenfab Verbundstreckwerk für Vorspinnmaschinen.
DE2749849A1 (de) * 1976-11-10 1978-05-11 Joseph Marie Julien Sauvage Vorrichtung zum mischen, entfilzen, kuerzen oder kalibrieren von faserbaendern aus natur- oder kunstfasern
JPS55137224A (en) * 1979-04-12 1980-10-25 Aichi Boseki Kk Folding mixing and collector for sliver
WO2004079068A2 (fr) * 2003-03-06 2004-09-16 Koenig Reinhard Tissu maille, procede et dispositif pour le realiser

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7882710B2 (en) 2007-06-14 2011-02-08 Reinhard Koenig Circular knitting machine for the production of knitted fabrics by at least partially using fibre materials

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